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Construction of a nomogram model to predict technical difficulty in performing laparoscopic sphincter-preserving radical resection for rectal cancer

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World Journal of Gastroenterology 2024年第18期30卷 2418-2439页

作者： Xiao-Cong Zhou Shi-wei Guan fei-Yue Ke Gaurav Dhamija Qiang Wang Bang-fei Chen Medical University(Wenzhou Central Hospital) Wenzhou 325000Zhejiang ProvinceChina Department of Hepatobiliary Surgery The Dingli Clinical Institute of Wenzhou Medical University(Wenzhou Central Hospital)Wenzhou 325000Zhejiang ProvinceChina Postgraduate Training Base Alliance of Wenzhou Medical University Wenzhou Central HospitalWenzhou 325000Zhejiang ProvinceChina School of International Studies Wenzhou Medical UniversityWenzhou Central HospitalWenzhou 325000Zhejiang ProvinceChina Department of Radiology The Dingli Clinical Institute of Wenzhou Medical University(Wenzhou Central Hospital)Wenzhou 325000Zhejiang ProvinceChina Department of Colorectal Surgery The Affiliated Zhejiang HospitalZhejiang University School of Medicine(Zhejiang Hospital)Hangzhou 310000Zhejiang ProvinceChina

BACKGROUND Colorectal surgeons are well aware that performing surgery for rectal cancer becomes more challenging in obese patients with narrow and deep pelvic ***,it is essential for colorectal surgeons to have a comprehensive understanding of pelvic structure prior to surgery and anticipate potential surgical *** To evaluate predictive parameters for technical challenges encountered during laparoscopic radical sphincter-preserving surgery for rectal *** We retrospectively gathered data from 162 consecutive patients who underwent laparoscopic radical sphincterpreserving surgery for rectal ***-dimensional reconstruction of pelvic bone and soft tissue parameters was conducted using computed tomography(CT)*** difficulty was categorized as either high or low,and multivariate logistic regression analysis was employed to identify predictors of operative difficulty,ultimately creating a *** Out of 162 patients,21(13.0%)were classified in the high surgical difficulty group,while 141(87.0%)were in the low surgical difficulty *** logistic regression analysis showed that the surgical approach using laparoscopic intersphincteric dissection,intraoperative preventive ostomy,and the sacrococcygeal distance were independent risk factors for highly difficult laparoscopic radical sphincter-sparing surgery for rectal cancer(P<0.05).Conversely,the anterior-posterior diameter of pelvic inlet/sacrococcygeal distance was identified as a protective factor(P<0.05).A nomogram was subsequently constructed,demonstrating good predictive accuracy(C-index=0.834).CONCLUSION The surgical approach,intraoperative preventive ostomy,the sacrococcygeal distance,and the anterior-posterior diameter of pelvic inlet/sacrococcygeal distance could help to predict the difficulty of laparoscopic radical sphincter-preserving surgery.

关键词： Nomogram Rectal cancer Laparoscopic operation Sphincter-preserving surgery Technical difficulty

Research on swarm intelligence optimization algorithm

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The Journal of China Universities of Posts and Telecommunications 2020年第3期27卷 1-20,30页

作者： fei wei Liu Cong Hu Sheng Hubei Key Laboratory for High-Efficiency Utilization of Solar Energy and Operation Control of Energy Storage System Hubei University of TechnologyWuhan 430068China Hubei Collaborative Innovation Center for High-Efficiency Utilization of Solar Energy Hubei University of Technologywuhan 430068China Wuhan Hua'an Science and Technology Co. Ltd.Postdoctoral WorkstationWuhan 430068.China

The bionics-based swarm intelligence optimization algorithm is a typical natural heuristic algorithm whose goal is to find the global optimal solution of the optimization *** simulates the group behavior of various animals and uses the information exchange and cooperation between individuals to achieve optimal goals through simple and effective interaction with experienced and intelligent *** paper first introduces the principles of various swarm intelligent optimization ***,the typical application of these swarm intelligence optimization algorithms in various fields is *** that,the advantages and defects of all swarm intelligence optimization algorithms are ***,the improvement strategies of various swarm intelligence optimization algorithms are ***,the future development of various swarm intelligence optimization algorithms is prospected.

关键词： bionics natural heuristic algorithm swarm intelligence algorithm intelligent computing

经皮微创脊柱后路钉棒系统固定治疗胸腰椎骨折近远期效果观察

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中国伤残医学 2024年第9期32卷 5-8页

作者：倪建平周国柱顾军黄亮包文龙魏斐靖江市中医院骨科江苏靖江214500

目的:观察胸腰椎骨折患者接受经皮微创脊柱后路钉棒系统固定治疗的近远期疗效。方法:选择2018年2月一2022年1月我院70例胸腰椎骨折患者作为研究对象,根据随机数字表法分为对照组和观察组,每组35例。对照组采用常规切开椎弓根内固定治疗... 详细信息

目的:观察胸腰椎骨折患者接受经皮微创脊柱后路钉棒系统固定治疗的近远期疗效。方法:选择2018年2月一2022年1月我院70例胸腰椎骨折患者作为研究对象,根据随机数字表法分为对照组和观察组,每组35例。对照组采用常规切开椎弓根内固定治疗,观察组采用经皮微创脊柱后路钉棒系统固定治疗,对比2组各项手术指标、术后恢复情况及并发症发生率。结果:术后观察组患者的手术时间、术中出血量、住院时间、术后引流量、术后负重时间、骨折愈合时间均优于对照组,差异均有统计学意义(P0.05),术后3个月及术后1年伤椎后凸Cobb角均降低,伤椎前缘高度比值、伤椎后缘高度均升高,观察组变化比对照组更明显,差异有统计学意义(P0.05)。术后7dVAS评分降低,术后3个月及术后1年ODI评分降低,Harris评分升高,观察组变化比对照组更明显,差异有统计学意义(P<0.05)。观察组术后并发症发生率为5.71%,低于对照组的25.71%,差异有统计学意义(P<0.05)。结论:胸腰椎骨折患者接受经皮微创脊柱后路钉棒系统固定治疗,近期疗效和远期疗效均能得到有效保障,对于促进患者腰椎指标及功能改善、缓解疼痛程度及减少并发症发生率均具有显著效果。

关键词：胸腰椎骨折经皮微创脊柱后路钉棒系统固定近期疗效远期疗效腰椎功能并发症

Role of micro-Ca/In alloying in tailoring the microstructural characteristics and discharge performance of dilute Mg-Bi-Sn-based alloys as anodes for Mg-air batteries

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Journal of Magnesium and Alloys 2024年第1期12卷 251-266页

作者： fei-er Shangguan wei-li Cheng Yu-hang Chen Ze-qin Cui Hui Yu Hong-xia Wang Li-fei Wang Hang Li Hua Hou School of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan 030024China School of Materials Science and Engineering Hebei University of TechnologyTianjin 300132China School of Materials Science and Engineering North University of ChinaTaiyuan 030051China

The influence of micro-Ca/In alloying on the microstructural charac teristics,electrochemical behaviors and discharge properties of extruded dilute Mg-0.5Bi-0.5Sn-based(wt.%)alloys as anodes for Mg-air batteries are *** grain size and texture intensity of the Mg-Bi-Sn-based alloys are significantly decreased after the Ca/In alloying,particularly for the In-containing *** that,in addition to nanoscale Mg_(3)Bi_(2)phase,a new microscale Mg_(2)Bi_(2)Ca phase forms in the Ca-containing *** electrochemical test results demonstrate that Ca/In micro-alloying can enhance the electrochemical *** In to alloy the Mg-Bi-Sn-based alloy is effective in restricting the cathodic hydrogen evolution(CHE)kinetics,leading to a low self-corrosion rate,while severe CHE occurred after Ca *** micro-alloying of Ca/In to Mg-Bi-Sn-based alloy strongly deteriorates the compactness of discharge products film and mitigates the"chunk effect"(CE),hence the cell voltage,anodic efficiency as well as discharge capacity are greatly *** In-containing alloy exhibits outstanding discharge performance under the combined effect of the modified microstructure and discharge products,thus making it a potential anode material for primary Mg-air battery.

关键词： Mg-air batteries Mg-Bi-Sn based alloys Electrochemical behaviors Discharge properties

Ultrathin and flexible MXene-contained electromagnetic interference shielding composite paper designed with a protective hydrogel film

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Journal of Materials Science & Technology 2024年第2期169卷 199-208页

作者： Jiasheng wei Lei Dai Ping He Meng Zhu Feng Jiang Zhaoxiang Zhou Guiqiang fei Tingzhou Lei College of Bioresources Chemical and Materials Engineering Shaanxi University of Science and TechnologyXi’an 710021China Key Laboratory of Eco-Textiles Ministry of EducationJiangnan UniversityWuxi 214122China Zhejiang Shunpu New Material Technology Co. LtdLongyou 324404China College of Chemistry and Chemical Engineering Shaanxi University of Science and TechnologyXi’an 710021China National-Local Joint Engineering Research Center of Biomass Refining and High-Quality Utilization Institute of Urban and Rural MiningChangzhou UniversityChangzhou 213164China

MXene-contained paper is a good choice to design ultrathin and flexible electromagnetic interference(EMI)shielding ***,the deficiencies in strength and stability of MXene-contained paper impede its practical ***,a composite paper was proposed to address the problems,in which a filter paper was modified with a three-layer structured surface via a facile layer-by-layer coating ***,the TEMPO-oxidized cellulose nanofibers(TOCN)/cationic starch(CS)/MXene gel layer and TOCN/MXene nacre structure layer ensured the good EMI shielding and mechanical performances of the composite paper,while the uppermost TOCN/CS hydrogel film layer mainly protected *** composite paper achieved an EMI SE of 40.3 dB at a thickness of merely 0.1894 mm(SE/t value of ca.212.8 dB mm^(−1),SSE/t values of ca.13216 dB cm 2 g^(−1))and the total MXene dosage was 20 g m^(−2).Its tensile strength could be up to 11.7 MPa while the original filter paper was 6.4 *** pieces of this composite papers could be easily packed together to attain an EMI SE of nearly 70 ***,the hydrogel film layer efficiently protected the MXene and maintained the EMI shielding performance of the composite paper when immersed in different liquids including water,HCl(1 M)and ethanol,due to the dense and compact structure of hydrogel film *** work provides a practical way to develop ultrathin,flexible and durable EMI shielding materials.

关键词： MXene Electromagnetic interference shielding Nanocellulose Hydrogel

The Role of Corticotropin-Releasing Factor Receptor 1 in the Stress-Induced Alteration of Visual Properties in Primary Visual Cortex:Insights from the Single Prolonged Stress Model

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Neuroscience Bulletin 2024年第7期40卷 1012-1016页

作者： Qianhui Xia Xi Kuang wei Meng fei Yin Chenchen Ma Yupeng Yang Center for Advanced Interdisciplinary Science and Biomedicine of IHM Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefei 230027China

Dear Editor,Stress initiates a cascade of hormonal and behavioral responses that enable an organism to adapt to new environmental *** unbalanced stress response can lead to dysregulation of the hypothalamic-pituitary-... 详细信息

关键词： Corti Receptor Cortex

Synthesis and Characterization of Tungsten Doped Vanadium Dioxide Nanopowders by Thermolysis

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Chinese Chemical Letters 2006年第10期17卷 1417-1420页

作者： Zi fei PENG wei JIANG Department of Chemistry Shanghai Normal University Shanghai 200234

As far as we known, with white powdery tungstic acid （WPTA） used as the dopant for the first time, tungsten-doped vanadium dioxide （VO2） nanopowders were synthesized through thermolysis at low temperature. The products were characterized by XRD, TEM and DSC. When WPTA was added into V205 （with W/V = 2 atom %）, the phase transition temperature （Tc） of VO2 decreased markedly from 67.15℃ to 26.46℃ after annealing at 500℃. Such a low Tc is beneficial to the application and development of smart windows materials.

关键词： Vanadium dioxide white powdery tungstic acid phase transition thermolysis

Design strategies of high-performance lead-free electroceramics for energy storage applications

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Rare Metals 2024年第3期43卷 853-878页

作者： Biao Guo fei Jin Li Li Zi-Zhao Pan Xin-wei Xu Hong Wang Department of Materials Science and Engineering College of EngineeringSouthern University of Science and TechnologyShenzhen518055China School of Microelectronics and State Key Laboratory for Mechanical Behavior of Materials Xi’an Jiaotong UniversityXi’an710049China

A greater number of compact and reliable electrostatic capacitors are in demand due to the Internet of Things boom and rapidly growing complex and integrated electronic systems,continuously promoting the development of high-energy-density ceramic-based *** significant successes have been achieved in obtaining high energy densities in lead-based ferroelectric ceramics,the utilization of lead-containing ceramies has been restricted due to environmental and health hazards of ***-free ferroelectric ceramics have garnered tremendous attention and are expected to replace lead-based ceramics in the near ***,the energy density of lead-free ceramics is still lagging behind that of lead-containing ***,severely limiting their *** efforts have been made to enhance the energy storage performance of lead-free ceramics using multi-scale design strategies,and exciting progress has been achieved in the past *** review briefly discusses the energy storage mechanism and fundamental characteristics of a dielectric capacitor,summarizes and compares the state-of-the-art design strategies for high-energy-density lead-free ceramics,and highlights several critical issues and requirements for industrial *** prospects and challenges of lead-free ceramics for energy storage applications are also discussed.

关键词： Dielectric materials Lead-free ceramic Environment friendly Energy storage Design strategy

General divisor functions in arithmetic progressions to large moduli

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Science China Mathematics 2016年第9期59卷 1663-1668页

作者： wei fei XUE BoQing ZHANG YiTang Academy of Mathematics and Systems Science Chinese Academy of Sciences Department of Mathematics University of California at Santa Barbara

We prove a result on the distribution of the general divisor functions in arithmetic progressions to smooth moduli which exceed the square root of the length.

关键词： divisor function arithmetic progression to large moduli mean-value estimate